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Filling Missing Data in Time Series Using Python and Pandas

Posted on September 17, 2024 by Peter Andersson

Handling missing data in a time series is a common challenge when working with datasets, especially in domains like finance or IoT, where data might […]

Development, Python

Efficiently Using bump2version with Python and Git

Posted on August 12, 2023 by Peter Andersson

Versioning your software is crucial for tracking changes, debugging, and ensuring compatibility. When working with Python projects in Git, one popular tool to help automate […]

Development, Python

High Performance Python

Posted on March 7, 2023 by Peter Andersson

Python is a high-level programming language known for its ease of use and readability. However, its interpreted nature often leads to performance issues when compared […]

Development, Python

Setting up Python logging efficiently

Posted on October 25, 2022 by Peter Andersson

The Python logging framework has been around for a long time, and with such a mature framework, it’s quite natural that the number of features […]

Development, Python

Running a Python Flask application under Apache

Posted on August 15, 2022 by Peter Andersson

When developing a Flask application, you normally run it from the terminal using flask run or in the code app.run() But when the app is […]

Apache, Development, Linux, Network, Python

Howto setup a Python Flask application as a system service on Linux

Posted on June 9, 2022 by Peter Andersson

With Flask you can have your backend coded in minutes, and with for example a Linode server you can get a $10/month-server up and running […]

bash, Development, Linux, Network, Python

A simple JWT example with NodeJS and Python (part 1)

Posted on June 6, 2022 by Peter Andersson

The following example is built using a Python Flask backend, a CURL-script to test it, and a simple React frontend that logs in, gets an […]

Development, Javascript, Linux, Node, Python

Adding a million rows from CSV file to a Mysql database table using Python and Pandas!

Posted on April 17, 2022 by Peter Andersson

Do you have a lot of CSV files, with sometimes many rows of data that you need to import to a Mysql database? You could […]

Development, Python

Detecting colors in a webcam feed

Posted on November 26, 2020 by Peter Andersson

A friend asked me to help debug an app that tried to detect three different colors. It was written in Python and used three precreated […]

Development, Imaging, Python, Video

Solution to pyenv problem

Posted on July 17, 2020 by Peter Andersson

If you get this (or similar) error when running: /home/peter/.pyenv/versions/3.8.3/lib/python3.8/site-packages/pandas/compat/__init__.py:117: UserWarning: Could not import the lzma module. Your installed Python is incomplete. Attempting to use […]

Python

The amazing power of Python and the Pandas framework!

Posted on April 11, 2020 by Peter Andersson

This code connects to a Mysql database, reads ths content of a table and imports it into a Dataframe. From there you can twist and […]

Development, Python

Setting up Python for development

Posted on June 13, 2019 by Peter Andersson

Perfecting your Python development setup by RealPython Perfect Your Python Development Setup (Learning Path) – Real Python Optimize your Python development setup with this learning […]

Development, Python

Managing multiple Python versions with multiple virtual environments

Posted on May 3, 2019 by Peter Andersson

Since I was used to use rvm to handle multiple ruby versions, and a .ruby-version file which automatically switched version for me, of course I […]

Development, Python

Download EOD data from Yahoo Finance to a Python Pandas Dataframe

Posted on April 17, 2019 by Peter Andersson

If you use the Pandas DataReader and get this message: pandas_datareader.exceptions.ImmediateDeprecationError: Google finance has been immediately deprecated due to large breaks in the API without […]

Development, Python, Trading

Pythons argparse for dummies

Posted on January 11, 2019 by Peter Andersson

Python is a great language, but sometimes it makes life more complicated than necessary. I don’t know if this is because it’s heritage (C) or […]

Development, Python

Installing OpenCV 3.4.1 using Python 3 on Raspbian Stretch

Posted on September 11, 2018 by Peter Andersson

UPDATED OCT 2020 See this link for a much better procedure: https://medium.com/@aadeshshah/pre-installed-and-pre-configured-raspbian-with-opencv-4-1-0-for-raspberry-pi-3-model-b-b-9c307b9a993a This is left for archiving purposes: As usual, I will keep this […]

Development, Python, Raspberry Pi